Creators of several nice modular block retaining wall systems. Their website has free design software for their products.
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Mike Stagg UK hydrology Geology soils
Adobe PDF Shear Flow Geo Metamorphic Eng Interflow V structure rock Mike Stagg UK MDStagghydrologyGeologysoilsResearch Visit Mike Stagg UK hydrology Geology soils
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US Geologic Survey – USGS
The USGS serves the Nation by providing reliable scientific information to describe and understand the Earth; minimize loss of life and property from natural disasters; manage water, biological, energy, and mineral resources; and enhance and […]
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Association of Environmental and Engineering Geologists (AEG)
Professional society for engineering geologists and environmental geologists. Visit Association of Environmental and Engineering Geologists (AEG)